php 生成带logo的二维码 例子

<?phpinclude 'phpqrcode.php';$value = 'http://www.cnblogs.com/txw1958/'; //二维码内容$errorCorrectionLevel = 'L';//容错级别$matrixPointSize = 6;//生成图片大小//生成二维码图片QRcode::png($value, './twocode/qrcode.png', $errorCorrectionLevel, $matrixPointSize, 2);$logo = './logo/logo.png';//准备好的logo图片$QR = './twocode/qrcode.png';//已经生成的原始二维码图if ($logo !== FALSE) {$QR = imagecreatefromstring(file_get_contents($QR));$logo = imagecreatefromstring(file_get_contents($logo));$QR_width = imagesx($QR);//二维码图片宽度$QR_height = imagesy($QR);//二维码图片高度$logo_width = imagesx($logo);//logo图片宽度$logo_height = imagesy($logo);//logo图片高度$logo_qr_width = $QR_width / 5;$scale = $logo_width/$logo_qr_width;$logo_qr_height = $logo_height/$scale;$from_width = ($QR_width - $logo_qr_width) / 2;//重新组合图片并调整大小imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width,$logo_qr_height, $logo_width, $logo_height);}//输出图片imagepng($QR, './twocodelogo/helloweixin.png'); $res="./twocodelogo/helloweixin.png";//传值//echo '<img src="./twocodelogo/helloweixin.png">';?>